Lub teeb I-beam
I-beams feem ntau muab faib ua I-beams zoo tib yam, lub teeb-lub luag haujlwm I-beams thiab dav-flange I-beams. Raws li qhov siab piv ntawm flange rau lub vev xaib, nws muab faib ua dav, nruab nrab, thiab nqaim dav flange I-beams. Thawj ob qhov kev tsim khoom tshwj xeeb yog 10-60, uas yog, qhov sib thooj qhov siab yog 10 cm-60 cm. Nyob rau tib qhov siab, lub teeb yuag I-beam muaj nqaim flanges, nyias webs thiab lub teeb yuag. Qhov dav-flange I-nqaj tseem hu ua H-beam, thiab nws cov hlaws dai yog tus cwj pwm los ntawm ob txhais ceg sib luag thiab tsis muaj txoj kab nqes ntawm sab hauv ntawm ob txhais ceg. Nws belongs rau kev lag luam steel, uas yog dov rau ntawm plaub-siab universal dov zeb, yog li nws tseem hu ua "universal I-beam". Ib qho yooj yim I-beams thiab lub teeb-lub luag haujlwm I-beams tau dhau los ua cov qauv hauv tebchaws.
Txawm hais tias qhov I-shaped steel zoo tib yam los yog lub teeb, vim hais tias tus ntoo khaub lig-section loj yog qhov siab thiab nqaim, lub sij hawm ntawm inertia ntawm ob lub ntsiab axes ntawm tus ntoo khaub lig-section yog qhov sib txawv heev, yog li nws tsuas yog siv tau ncaj qha. rau khoov hauv lub dav hlau ntawm nws lub vev xaib. Cheebtsam los yog tsim lawv rau hauv lattice-type force-bearing Cheebtsam. Nws tsis tsim nyog siv axial compression Cheebtsam lossis cov khoom sib txuas ntawm lub dav hlau ntawm lub vev xaib, uas tseem yog nkhaus, uas ua rau nws daim ntawv thov tau txwv heev. I-beams yog siv dav hauv kev tsim kho lossis lwm yam hlau.
Ordinary I-beams thiab lub teeb-lub luag hauj lwm I-beams muaj kuj siab thiab nqaim cross-section, yog li lub sij hawm ntawm inertia ntawm ob lub ntsiab axes ntawm tus ntoo khaub lig-section yog heev txawv, uas txwv lawv daim ntawv thov scope. Kev siv I-beam yuav tsum raug xaiv raws li qhov yuav tsum tau ua ntawm kev tsim cov duab kos.
Kev xaiv ntawm I-beam hauv cov qauv tsim yuav tsum ua raws li nws cov khoom siv kho tshuab, tshuaj lom neeg, weldability, cov qauv loj, thiab lwm yam los xaiv qhov tsim nyog I-beam rau kev siv.
